Howard, with the Tasmanian government's financial problems at the moment it can almost be guaranteed that they will go with the lowest price. So if there is one tenderer who needs to cover depreciation of a new aircraft and another who is offering a price with a fully depreciated aircraft it will be a no-brainer.
What will be fascinating to watch is where the air-ambulance base will be. There is little doubt that the government would like it to be in Hobart (don't know why but it has been floated a few times before) while the medical profession (and RFDS) want it to remain in Launceston where there is a nice nearly new facility. Rotor-Lift have space at Hobart on the freight apron that they could use should they get the fixed-wing contract. Space at Hobart is at a premium because MAPT won't spend money on putting in an access road that would open up space to the south of the existing freight apron.
Watch this space.